Didn't see your last reply until just now (9:50 PDT Thursday) ...
Anyway, a couple of comments as we spiral towards a deal for you to make the attempt:
1. Thus far I'm having a problem finding Blessed Mythril Sheets. They are essentially non-existent on my server; a few have sold every few MONTHS in Jeuno and Bastok, but that's about it. So I'm going to have to "commission" these before we can proceed. I know it's an Alchemy synth (52), so I suspect I can coax an LS mate with that skill to make these for me. I may ask for 6 of them, with an eye to trying TWO times for the DBP.
2. If you should ultimately get an NQ result (the HBP), which is far more likely than an HQ, I'll still wear the signed item. (I'd sell my current, unsigned specimen.) So at least you'd get some advertising that way, albeit not as good as if "we" get a DBP.
3. Do you have any notions as to how to maximize your shot at an HQ? Other than getting advanced guild support and wearing gloves, apron, and putting (only) your anvil (if you have it) in your Layout? I'm not quizzing you here; I'm almost entirely new to the realm of "OK, let's try for an HQ here on this one leet item!" My usual stuff is cranking out ammo ...